Function plot

src/traces/pie/plot.js:22–325

(gd, cdModule)

var isValidTextValue = require('../../lib').isValidTextValue;

function plot(gd, cdModule) {
    var isStatic = gd._context.staticPlot;

    var fullLayout = gd._fullLayout;
    var gs = fullLayout._size;

    clearMinTextSize('pie', fullLayout);

    prerenderTitles(cdModule, gd);
    layoutAreas(cdModule, gs);

    var plotGroups = Lib.makeTraceGroups(fullLayout._pielayer, cdModule, 'trace').each(function (cd) {
        var plotGroup = d3.select(this);
        var cd0 = cd[0];
        var trace = cd0.trace;

        setCoords(cd);

        // TODO: miter might look better but can sometimes cause problems
        // maybe miter with a small-ish stroke-miterlimit?
        plotGroup.attr('stroke-linejoin', 'round');

        plotGroup.each(function () {
            var slices = d3.select(this).selectAll('g.slice').data(cd);

            slices.enter().append('g').classed('slice', true);
            slices.exit().remove();

            var quadrants = [
                [[], []], // y<0: x<0, x>=0
                [[], []] // y>=0: x<0, x>=0
            ];
            var hasOutsideText = false;

            slices.each(function (pt, i) {
                if (pt.hidden) {
                    d3.select(this).selectAll('path,g').remove();
                    return;
                }

                // to have consistent event data compared to other traces
                pt.pointNumber = pt.i;
                pt.curveNumber = trace.index;

                quadrants[pt.pxmid[1] < 0 ? 0 : 1][pt.pxmid[0] < 0 ? 0 : 1].push(pt);

                var cx = cd0.cx;
                var cy = cd0.cy;
                var sliceTop = d3.select(this);
                var slicePath = sliceTop.selectAll('path.surface').data([pt]);

                slicePath
                    .enter()
                    .append('path')
                    .classed('surface', true)
                    .style({ 'pointer-events': isStatic ? 'none' : 'all' });

                sliceTop.call(attachFxHandlers, gd, cd);